Novel composite tensile shock insulation support

Abstract

The novel composite tensile shock insulation support comprises a lower support plate, a supporting block is fixedly installed above the lower support plate, and a spherical groove is formed in the middle of the supporting block; and the top of the friction pendulum is fixedly connected with an upper support plate, the bottom of the friction pendulum is arranged in the spherical groove, and an annular energy consumption plate is installed between the supporting block and the upper support plate. According to the technical scheme, excellent shock insulation performance in the horizontal direction and tensile and uplift resistance in the vertical direction are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of building structures, and in particular relates to a novel composite tensile-resistant seismic isolation bearing. Background Art

[0002] Earthquake protection has always been a crucial issue in the field of construction engineering. Traditional earthquake-resistant designs rely primarily on the strength and rigidity of the structure itself to resist seismic forces. However, as research into earthquake hazards deepens, it has been discovered that simply increasing the strength of a building structure is not completely effective in resisting earthquake damage. In particular, buildings can still suffer severe damage or even collapse in the face of strong earthquakes. Therefore, seismic isolation technology, as an emerging earthquake-resistant measure, has gradually attracted widespread attention and application.

[0003] Seismic isolation technology involves installing a seismic isolation device between a building and its foundation. This allows the building to move relative to the foundation during an earthquake, thereby reducing the transmission of seismic forces to the superstructure and achieving a shock absorption effect. Common seismic isolation devices include rubber bearings, sliding bearings, and friction pendulum bearings. While these devices excel at horizontal seismic isolation, their tensile and pullout resistance is insufficient in certain specific applications.

[0004] High-rise buildings and bridges are among the primary applications of seismic isolation technology. Under earthquakes, these structures are subject not only to horizontal seismic forces but also to vertical tensile and compressive forces. Traditional seismic isolation bearings, such as pure rubber bearings and friction pendulum bearings, are primarily designed for horizontal seismic isolation and have relatively weak tensile and pullout resistance. Under strong earthquakes, especially when the vertical motion caused by seismic waves is strong, traditional bearings may not provide sufficient tensile and pullout support, leading to bearing failure and consequent structural damage.

[0005] Based on the above problems, there is an urgent need for a new type of seismic isolation bearing that can provide sufficient tensile and pullout resistance while maintaining excellent horizontal seismic isolation performance to meet the multi-directional force requirements of high-rise buildings and bridge structures under earthquakes. Summary of the Invention

[0006] The purpose of the present invention is to provide a novel composite tensile-resistant seismic isolation bearing to solve the problems existing in the above-mentioned prior art.

[0007] To achieve the above objectives, the present invention provides a novel composite tensile seismic isolation bearing, comprising: 1. A novel composite tensile seismic isolation bearing, characterized in that it comprises:

[0008] A lower support plate, a support block is fixedly installed on the upper portion of the lower support plate, and a spherical groove is opened in the middle of the support block;

[0009] A friction pendulum, wherein the top of the friction pendulum is fixedly connected to an upper support plate, the bottom of the friction pendulum is arranged in the spherical groove, and an annular energy-absorbing plate is installed between the support block and the upper support plate.

[0010] Optionally, the friction pendulum includes a friction pendulum trunk, the top of the friction pendulum trunk is fixedly connected to the upper support plate, and the bottom is arranged in the spherical groove.

[0011] Optionally, a number of friction pendulum branches evenly distributed in the circumferential direction are installed on the outer side wall of the friction pendulum main trunk, and the multi-forked end formed by one end of each friction pendulum branch away from the friction pendulum main trunk is an arc surface, and the curvature of the arc surface is equal to the curvature of the spherical groove.

[0012] Optionally, a sliding gasket is laid in the spherical groove, and a sliding material is provided between the sliding gasket and an end of each friction pendulum branch away from the friction pendulum main trunk.

[0013] Optionally, the sliding material is polytetrafluoroethylene.

[0014] Optionally, the friction pendulum trunk is made of high-strength steel.

[0015] Optionally, each of the friction pendulum branches is made of high-strength steel.

[0016] Optionally, three friction pendulum branches are provided.

[0017] The technical effects of the present invention are:

[0018] The novel composite tensile isolation bearing provided by the present invention achieves excellent horizontal isolation performance and vertical tensile and pull-out resistance by combining the design of a friction pendulum component and a tensile and pull-out resistance component. The present invention allows the upper bearing plate to slide smoothly relative to the lower bearing plate, absorbing the horizontal displacement caused by the earthquake and enhancing the isolation performance of the bearing. Under the action of an earthquake, the friction pendulum swings in the spherical sliding groove. When the swing amplitude reaches a certain level, the friction pendulum will hit the energy dissipation plate, generating buckling energy dissipation, thereby reducing the instantaneous impact energy of the earthquake and further improving the seismic performance of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of this application. The exemplary embodiments and descriptions of this application are intended to explain this application and do not constitute an improper limitation on this application. In the accompanying drawings:

[0021] Figure 1 Schematic diagram of the overall structure of a novel composite tensile isolation bearing in an embodiment of the present invention;

[0022] Figure 2 is a detailed structural diagram of a friction pendulum assembly in an embodiment of the present invention;

[0023] Figure 3 Detailed structural cross-sectional diagram of the tensile and pull-out resistant system in an embodiment of the present invention;

[0024] Figure 4 It is a cross-sectional schematic diagram of the friction pendulum assembly swinging in the spherical sliding groove of the lower support in an embodiment of the present invention.

[0025] Explanation of the numbers: 1. Upper support plate; 2. Lower support plate; 3. Friction pendulum assembly; 4. Spherical sliding groove; 5. Energy dissipation plate; 6. Impact point; 7. Friction pendulum main trunk; 8. Friction pendulum branch. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0029] The words “include,” “including,” “have,” “contain,” etc. used in this article are open-ended terms, meaning including but not limited to.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention pertains. The terms used in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0031] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] Example 1

[0033] like Figure 1-Figure 4 As shown, this embodiment provides a new type of composite tensile isolation bearing, including: a lower bearing plate 2, a support block is fixedly installed above the lower bearing plate 2, and a spherical groove is opened in the middle of the support block; a friction pendulum, the top of the friction pendulum is fixedly connected to the upper bearing plate 1, the bottom of the friction pendulum is arranged in the spherical groove, and an annular energy absorption plate 5 is installed between the support block and the upper bearing plate 1.

[0034] A new type of composite tensile seismic isolation bearing in this embodiment achieves excellent horizontal seismic isolation performance and vertical tensile and pull-out resistance by combining the design of the friction pendulum assembly 3 and the tensile and pull-out resistance assembly. The friction pendulum assembly 3 adopts a low-friction coefficient material, so that the upper bearing plate 1 can slide smoothly relative to the lower bearing plate 2, absorb the horizontal displacement caused by the earthquake, and enhance the seismic isolation performance of the bearing. Under the action of the earthquake, the friction pendulum swings in the spherical sliding groove 4. When the swing amplitude reaches a certain level, the friction pendulum will hit the energy dissipation plate 5, generating buckling energy dissipation, thereby reducing the instantaneous impact energy of the earthquake and further improving the seismic performance of the bearing. At the same time, the tensile and pull-out resistance function is achieved by the excellent tensile, pull-out and anti-overturning functions of the energy dissipation plate 5, further enhancing the tensile and pull-out resistance functions of the bearing and ensuring the overall stability and safety of the bearing.

[0035] This embodiment provides a novel composite tensile-resistant, seismic-isolating bearing, comprising an upper bearing plate 1, a lower bearing plate 2, a friction pendulum assembly 3, a spherical sliding groove 4, and an energy dissipation plate 5. The friction pendulum assembly 3 includes a friction pendulum and a sliding gasket. The friction pendulum is fixedly connected to the lower surface of the upper bearing plate 1, and the sliding gasket is fixedly connected to the spherical sliding groove 4 on the upper portion of the lower bearing plate 2. A low-friction material (such as polytetrafluoroethylene (PTFE)) is provided between the friction pendulum and the sliding gasket. The energy dissipation plate 5 is mounted on the top plane of the spherical sliding groove 4 on the upper portion of the lower bearing plate 2 to limit the swing range of the friction pendulum and provide tensile, pullout, and anti-overturning functions.

[0036] The friction pendulum is composed of a friction pendulum trunk 7 and a friction pendulum branch 8, and is in an inverted tree-like three-forked shape. The friction pendulum trunk 7 is fixedly connected to the lower surface of the upper support plate 1, and the friction pendulum branch 8 is fixedly connected to the lower part of the trunk. The three-forked end is an arc surface, and the curvature is consistent with the curvature of the spherical sliding groove 4.

[0037] The energy dissipation plate 5 comprises a plurality of annular steel plates whose central angles are at a certain angle, which are combined together to form an overall circular ring shape and fixed to the top plane of the spherical sliding groove 4 .

[0038] During implementation, the upper support plate 1 bears the weight of the building structure, while the friction pendulum assembly 3 provides horizontal seismic isolation. The low-friction material between the friction pendulum and the sliding pad ensures that the upper support plate 1 slides smoothly relative to the lower support plate 2, effectively absorbing the horizontal displacement caused by earthquakes.

[0039] Under the action of earthquake, the friction pendulum swings in the spherical sliding groove 4. When the swing amplitude reaches a certain level, the friction pendulum will hit the energy dissipation plate 5, generating buckling energy dissipation, thereby further improving the seismic performance of the bearing.

[0040] When earthquake waves cause the building to produce longitudinal displacement, the energy dissipation plate 5 provides additional tensile and pull-out resistance at this time, and further enhances the tensile and pull-out anti-overturning function of the support when the friction pendulum hits the energy dissipation plate 5.

[0041] Optionally, polytetrafluoroethylene (PTFE) material is provided between the friction pendulum and the sliding gasket of the friction pendulum assembly 3. PTFE has an extremely low coefficient of friction and excellent wear resistance, making the friction pendulum assembly 3 slide more smoothly and further improving seismic isolation performance. Furthermore, the use of PTFE ensures greater durability and stability of the bearing during long-term use.

[0042] High-strength steel is a practical material for the friction pendulum. High-strength steel has excellent mechanical properties and corrosion resistance, providing sufficient tensile and pullout resistance, making it suitable for higher-strength building structures. By using high-strength steel, the overall strength and durability of the support are significantly improved.

[0043] The friction pendulum diameter and sliding washer thickness of the friction pendulum assembly 3 are adjusted based on the specific needs of the building structure. Different building structures have different requirements for seismic isolation. By adjusting the thickness of the friction pendulum and sliding washer, the seismic isolation requirements of various building structures can be flexibly adapted. For example, for high-rise buildings, thicker friction pendulums and sliding washer thicknesses can be selected to provide stronger seismic isolation.

[0044] The thickness, cantilever length, number, and spacing of the energy dissipation plate 5 are designed based on the specific tensile and pullout resistance requirements of the building structure. Different building structures have different stress conditions and tensile and pullout resistance requirements. By rationally designing the thickness, number, and spacing of the tensile and pullout rods, the stability and safety of the bearing can be ensured in various complex environments. For example, in bridge structures, the number of tensile and pullout rods can be increased to meet greater tensile and pullout resistance requirements.

[0045] The upper and lower support plates 1 and 2 are each made of steel or other high-strength materials. Steel has excellent mechanical properties and durability, capable of withstanding significant building loads and seismic forces, ensuring the overall strength and durability of the support. For specialized building structures, other high-strength materials may also be used.

Claims

1. A new type of composite tensile isolation bearing, characterized in that: include: A lower support plate (2), a support block being fixedly mounted above the lower support plate (2), and a spherical groove being formed in the middle of the support block; A friction pendulum, wherein the top of the friction pendulum is fixedly connected to an upper support plate (1), the bottom of the friction pendulum is arranged in the spherical groove, and an annular energy-absorbing plate (5) is installed between the support block and the upper support plate (1).

2. The novel composite tensile isolation bearing according to claim 1 is characterized in that: The friction pendulum comprises a friction pendulum trunk (7), the top of the friction pendulum trunk (7) is fixedly connected to the upper support plate (1), and the bottom is arranged in the spherical groove.

3. The novel composite tensile isolation bearing according to claim 2 is characterized in that: A plurality of friction pendulum branches (8) uniformly distributed along the circumferential direction are installed on the outer side wall of the friction pendulum main trunk (7), and the multi-branched end formed by one end of each friction pendulum branch (8) away from the friction pendulum main trunk (7) is an arc surface, and the curvature of the arc surface is equal to the curvature of the spherical groove.

4. The novel composite tensile isolation bearing according to claim 3 is characterized in that: A sliding gasket is laid in the spherical groove, and a sliding material is provided between the end of each friction pendulum branch (8) away from the friction pendulum main trunk (7) and the sliding gasket.

5. The novel composite tensile isolation bearing according to claim 4 is characterized in that: The sliding material is polytetrafluoroethylene.

6. The novel composite tensile isolation bearing according to claim 2 is characterized in that: The friction pendulum trunk (7) is made of high-strength steel.

7. The novel composite tensile isolation bearing according to claim 3 is characterized in that: Each of the friction pendulum branches (8) is made of high-strength steel.

8. The novel composite tensile isolation bearing according to claim 3 is characterized in that: The friction pendulum branches (8) are provided in three numbers.

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